/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package org.apache.jmeter.assertions;

import java.io.Serializable;
import java.text.MessageFormat;

import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.testelement.AbstractTestElement;
import org.apache.jmeter.util.JMeterUtils;

/**
 * Checks if an Sample is sampled within a specified time-frame. If the duration
 * is larger than the timeframe the Assertion is considered a failure.
 * 
 * author <a href="mailto:wolfram.rittmeyer@web.de">Wolfram Rittmeyer</a>
 * @version $Revision: 519376 $, $Date: 2007-03-17 17:36:09 +0000 (Sat, 17 Mar 2007) $
 */
public class DurationAssertion extends AbstractTestElement implements Serializable, Assertion {
	/** Key for storing assertion-informations in the jmx-file. */
	public static final String DURATION_KEY = "DurationAssertion.duration"; // $NON-NLS-1$

	/**
	 * Returns the result of the Assertion. Here it checks wether the Sample
	 * took to long to be considered successful. If so an AssertionResult
	 * containing a FailureMessage will be returned. Otherwise the returned
	 * AssertionResult will reflect the success of the Sample.
	 */
	public AssertionResult getResult(SampleResult response) {
		AssertionResult result = new AssertionResult(getName());
		result.setFailure(false);
		long duration=getAllowedDuration();
		if (duration > 0) {
			long responseTime=response.getTime();
		// has the Sample lasted too long?
			if ( responseTime > duration) {
				result.setFailure(true);
				Object[] arguments = { new Long(responseTime), new Long(duration) };
				String message = MessageFormat.format(
						JMeterUtils.getResString("duration_assertion_failure") // $NON-NLS-1$
						, arguments);
				result.setFailureMessage(message);
			}
		}
		return result;
	}

	/**
	 * Returns the duration to be asserted. A duration of 0 indicates this
	 * assertion is to be ignored.
	 */
	private long getAllowedDuration() {
		return getPropertyAsLong(DURATION_KEY);
	}

}